2113915 has 8 divisors (see below), whose sum is σ = 2557440. Its totient is φ = 1677312.

The previous prime is 2113913. The next prime is 2113931. The reversal of 2113915 is 5193112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113915 - 2¹ = 2113913 is a prime.

It is a super-4 number, since 4×2113915⁴ (a number of 26 digits) contains 4444 as substring.

2113915 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2113913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (319680).

2^2113915 is an apocalyptic number.

2113915 is a deficient number, since it is larger than the sum of its proper divisors (443525).

2113915 is a wasteful number, since it uses less digits than its factorization.

2113915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461.

The product of its digits is 270, while the sum is 22.

The square root of 2113915 is about 1453.9308786872. The cubic root of 2113915 is about 128.3401394415.

The spelling of 2113915 in words is "two million, one hundred thirteen thousand, nine hundred fifteen".